Can you please provide the actual measurements of your floorboard. And please don't say it can be made to whatever I'd like it to be. If you have your built provide us with your exact measurements and if you forgot them could you just remeasure it since you have it built already.
it has 3 chambers, the two main air chambers actually meet at a seam on the bottom of the boat - you get a puncture there and both deflate leaving the floor chamber only. I would feel safer with 5 chambers - they could easily do it. Remember Titanic? unsinkable.
Boleh ukur guna gabungan 3 helai news paper bro then lekat dekat playwood.potong playwood ikut sukatan news paper. The Saiz carpet tu boleh jer lebih untuk cover bahagian bawah playwood juga
Are you sure just any type of battery can be use? If im not mistaken from what ive heard from other user,most of them are using deep cycle 12v battery because other 12 v battery are mostly the regular type which is easily drained and most of all is the lifespan for the battery is usualy lower compare to those deep cycle battery.. Please do correct me if im wrong here 😅
I have an inflatable kayak by this company and have ran over underwater branches that I can feel pushing me up and no punctures, but I wouldn't make a habit of hitting stuff lol
The dimensions / size of the floor can be according to your own preference or according to the size of the boat sir. I just randomly measured the floor of my boat 
